Tom Mason
Dr. Scott Dryden
Eric Braeden
Leonard Nero
Melinda O. Fee
Gwendolyn O'Brien
Fawne Harriman
Joyce Cummings
Matthew Labyorteaux
Timmy Garner
Ron Masak
Harve Nelson
Caroline McWilliams
Sue Garner
John Milford
Eldon Gates
Max Gail
Russ Garner
Ed Harris
Chuck Polcheck
Hank Brandt
Lt. Col. John Sebastian
Laurence Haddon
Bert Fowler
Gerald McRaney
Patrolman Ashley
C
Curtis Credel
Frank Foley
R
Richard Lockmiller
Patrolman Strong
S
Sean G. Griffin
Dr. Conley
C
Christopher L. O'Brien
Technician
T
Tom Lowell
Intern
N
Nancy Priddy
Teacher
Lorna Thayer
Waitress
J
John Gilgreen
Floyd
L
Laurie Beach
Girl Student
D
Dirk Olthof
Waiter
T
Tom Pittman
Security Guard
P
Peter Schuck
Orderly
William Kerwin
Professor Reeve (uncredited)